The drama, set in Santa Barbara in the summer of 1979, follows three women's stories, each from a different era of the 20th century. They come together to help teach Jamie, a teenage boy, about life and love, sex and freedom, men and women.

Megan Ellison of Annapurna Pictures is producing with Anne Carey of Archer Gray and Youree Henley. A24 plans a release in the fourth quarter of this year.

"From a filmmaker's perspective, it’s a dream come true to work with both Annapurna and now A24,” Mills said Wednesday in a statement. “Especially with a film that is in many ways a portrait to the real women who raised me. Everyone at A24 has been rooting for this film for a long time, which means the world to me, and I’ve always admired how brave, smart and innovative they are about bringing their films to the world — finding diverse new audiences for films that don’t follow the rules.”

UTA negotiated the deal on behalf of Annapurna. Mills also is repped by UTA.